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Finding the Fourth Proportional to 19,287.14, 28,934.58 and 8,193.74

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Solution

The fourth proportional to 19,287.14, 28,934.58 and 8,193.74 is: 12,292.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.14 : 28,934.58 = 8,193.74 : x
  2. Step 2: Convert to fraction form
    19,287.14/28,934.58 = 8,193.74/x
  3. Step 3: Cross multiply
    19,287.14x = 28,934.58 × 8,193.74
  4. Step 4: Simplify right side
    19,287.14x = 237,082,425.53
  5. Step 5: Solve for x
    x = 237,082,425.53/19,287.14
  6. Step 6: Final answer
    x = 12,292.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.